3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('foo' => null); var_export($array); echo "\nisset? "; var_export(isset($array['foo'])); echo "\narray_key_exists? "; var_export(array_key_exists('foo', $array)); echo "\n";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0120.00618.55
8.3.50.0140.00522.12
8.3.40.0090.00618.54
8.3.30.0030.01019.07
8.3.20.0080.00020.29
8.3.10.0080.00021.97
8.3.00.0080.00022.34
8.2.180.0130.00725.92
8.2.170.0080.00618.96
8.2.160.0130.00322.96
8.2.150.0070.00025.66
8.2.140.0080.00024.66
8.2.130.0120.00326.16
8.2.120.0060.00317.38
8.2.110.0030.00622.21
8.2.100.0000.01117.68
8.2.90.0000.00817.50
8.2.80.0040.00418.92
8.2.70.0000.00817.75
8.2.60.0040.00417.75
8.2.50.0050.00317.63
8.2.40.0040.00419.35
8.2.30.0050.00317.75
8.2.20.0030.00517.59
8.2.10.0040.00419.51
8.2.00.0080.00017.68
8.1.280.0060.01325.92
8.1.270.0040.00424.66
8.1.260.0000.00826.35
8.1.250.0030.00528.09
8.1.240.0050.00522.05
8.1.230.0110.00020.76
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0080.00017.23
8.1.190.0030.00517.10
8.1.180.0030.00618.88
8.1.170.0040.00417.63
8.1.160.0000.00718.73
8.1.150.0040.00418.57
8.1.140.0000.00717.27
8.1.130.0040.00417.78
8.1.120.0050.00217.43
8.1.110.0040.00417.35
8.1.100.0070.00017.38
8.1.90.0040.00417.36
8.1.80.0080.00017.43
8.1.70.0030.00317.30
8.1.60.0060.00317.44
8.1.50.0040.00417.50
8.1.40.0000.00817.49
8.1.30.0070.00017.63
8.1.20.0000.00917.63
8.1.10.0040.00417.52
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0080.00017.96
8.0.270.0000.00817.96
8.0.260.0000.00616.82
8.0.250.0050.00316.91
8.0.240.0040.00416.78
8.0.230.0000.00816.91
8.0.220.0040.00416.76
8.0.210.0070.00016.83
8.0.200.0030.00316.88
8.0.190.0050.00316.82
8.0.180.0000.00716.85
8.0.170.0040.00416.81
8.0.160.0000.00816.70
8.0.150.0030.00316.79
8.0.140.0070.00016.77
8.0.130.0000.00513.13
8.0.120.0040.00416.69
8.0.110.0040.00416.81
8.0.100.0040.00416.66
8.0.90.0000.00716.82
8.0.80.0100.00516.79
8.0.70.0070.00016.84
8.0.60.0000.00716.70
8.0.50.0020.00516.70
8.0.30.0090.01217.01
8.0.20.0070.01117.40
8.0.10.0070.00016.77
8.0.00.0090.00816.63
7.4.330.0030.00315.00
7.4.320.0030.00316.55
7.4.300.0000.00716.51
7.4.290.0000.00716.49
7.4.280.0040.00416.45
7.4.270.0030.00316.65
7.4.260.0070.00016.55
7.4.250.0000.00816.49
7.4.240.0050.00216.53
7.4.230.0030.00316.48
7.4.220.0060.01216.62
7.4.210.0100.00616.56
7.4.200.0080.00016.66
7.4.190.0070.00016.48
7.4.160.0120.00416.69
7.4.150.0070.01017.40
7.4.140.0110.01117.86
7.4.130.0100.00816.44
7.4.120.0070.01016.54
7.4.110.0070.01016.48
7.4.100.0060.01216.39
7.4.90.0180.00316.30
7.4.80.0070.00619.39
7.4.70.0080.00816.49
7.4.60.0070.01016.50
7.4.50.0030.00316.66
7.4.40.0070.00722.77
7.4.30.0140.00716.49
7.4.00.0030.00914.90
7.3.330.0000.00713.11
7.3.320.0000.00513.13
7.3.310.0050.00216.19
7.3.300.0060.00016.11
7.3.290.0050.01016.20
7.3.280.0070.00816.24
7.3.270.0120.00617.40
7.3.260.0060.01116.25
7.3.250.0130.00816.30
7.3.240.0110.01116.36
7.3.230.0130.00616.39
7.3.210.0140.00316.21
7.3.200.0030.01319.39
7.3.190.0140.00716.23
7.3.180.0080.00816.36
7.3.170.0070.01016.33
7.3.160.0070.01416.21
7.3.120.0110.00414.66
7.3.10.0130.00016.60
7.3.00.0030.01016.25
7.2.330.0040.01416.34
7.2.320.0090.01316.51
7.2.310.0070.01116.55
7.2.300.0060.00916.29
7.2.290.0100.01316.48
7.2.130.0000.00916.86
7.2.120.0000.01316.63
7.2.110.0080.00016.79
7.2.100.0110.00016.83
7.2.90.0140.00316.93
7.2.80.0060.00616.88
7.2.70.0100.00316.83
7.2.60.0020.01216.79
7.2.50.0060.00916.66
7.2.40.0000.01416.71
7.2.30.0100.01016.88
7.2.20.0160.00316.73
7.2.10.0060.01016.79
7.2.00.0100.00517.95
7.1.250.0100.00015.71
7.1.200.0070.00715.38
7.1.100.0060.00618.16
7.1.70.0040.01117.04
7.1.60.0110.01419.82
7.1.50.0000.01416.90
7.1.00.0000.08022.34
7.0.200.0090.00416.75
7.0.140.0030.07022.02
7.0.60.0100.07719.96
7.0.50.0100.06317.80
7.0.40.0030.08720.03
7.0.30.0300.08320.09
7.0.20.0330.06720.04
7.0.10.0270.07720.18
7.0.00.0030.05020.22
5.6.280.0100.06720.81
5.6.210.0000.05320.68
5.6.200.0030.05018.21
5.6.190.0100.05720.43
5.6.180.3230.04020.63
5.6.170.0300.06320.54
5.6.160.0030.04320.54
5.6.150.0170.07018.12
5.6.140.0030.05318.11
5.6.130.0170.07318.21
5.6.120.0100.06321.00
5.6.110.0070.09021.08
5.6.100.0070.05021.13
5.6.90.0230.07321.09
5.6.80.0000.04320.43
5.6.70.0300.07720.49
5.5.350.0030.04020.33
5.5.340.0070.03717.98
5.5.330.0100.08320.56
5.5.320.0170.05020.18
5.5.310.0400.07020.23
5.5.300.0100.07717.92
5.5.290.0030.04018.02
5.5.280.0070.06320.68
5.5.270.0170.06020.94
5.5.260.0070.08720.79
5.5.250.0000.05020.46
5.5.240.0030.05320.26
5.4.450.0170.04719.55
5.4.440.0230.08019.21
5.4.430.0200.05719.24
5.4.420.0330.06719.20
5.4.410.0300.08019.36
5.4.400.0230.03719.09
5.4.390.0200.04718.81
5.4.380.0370.05019.09
5.4.370.0400.04319.10
5.4.360.0270.04718.92
5.4.350.0270.06719.06
5.4.340.0200.06718.79
5.4.320.0300.06318.93
5.4.310.0230.06019.13
5.4.300.0230.05718.91
5.4.290.0330.04719.08
5.4.280.0330.06719.05
5.4.270.0300.06019.09
5.4.260.0330.04319.07
5.4.250.0370.06719.12
5.4.240.0270.07318.88
5.4.230.0330.04719.21
5.4.220.0400.05718.92
5.4.210.0330.06718.87
5.4.200.0270.07319.15
5.4.190.0300.06718.87
5.4.180.0330.06719.12
5.4.170.0200.05719.08
5.4.160.0200.05318.79
5.4.150.0370.06318.78
5.4.140.0300.03316.29
5.4.130.0270.05016.27
5.4.120.0270.06316.43
5.4.110.0270.04316.20
5.4.100.0200.04716.38
5.4.90.0300.06316.41
5.4.80.0400.04716.39
5.4.70.0400.06016.37
5.4.60.0330.06316.40
5.4.50.0270.06016.36
5.4.40.0300.03016.45
5.4.30.0270.05316.43
5.4.20.0330.06316.38
5.4.10.0300.03716.27
5.4.00.0330.05715.67
5.3.290.0270.07014.49
5.3.280.0330.06314.57
5.3.270.0300.07014.55
5.3.260.0170.08314.44
5.3.250.0230.06714.55
5.3.240.0230.07014.55
5.3.230.0270.03314.43
5.3.220.0300.07314.51
5.3.210.0400.03714.51
5.3.200.0230.04714.54
5.3.190.0300.05314.41
5.3.180.0230.05314.54
5.3.170.0330.07014.40
5.3.160.0300.06314.64
5.3.150.0300.05714.41
5.3.140.0230.03714.50
5.3.130.0300.05314.65
5.3.120.0370.07014.53
5.3.110.0300.07314.49
5.3.100.0200.04714.06
5.3.90.0270.05713.86
5.3.80.0230.05313.96
5.3.70.0330.05313.86
5.3.60.0230.07013.80
5.3.50.0470.05013.85
5.3.40.0430.05713.89
5.3.30.0270.05013.75
5.3.20.0330.05313.63
5.3.10.0230.05713.50
5.3.00.0230.06013.51
5.2.170.0270.02712.08
5.2.160.0300.05012.08
5.2.150.0270.04312.08
5.2.140.0200.05312.08
5.2.130.0300.03012.08
5.2.120.0370.03012.08
5.2.110.0170.04012.08
5.2.100.0230.03312.08
5.2.90.0270.05312.08
5.2.80.0200.05012.08
5.2.70.0270.04712.08
5.2.60.0230.05312.08
5.2.50.0300.04012.08
5.2.40.0170.02712.08
5.2.30.0230.03012.08
5.2.20.0170.06012.08
5.2.10.0200.06012.08
5.2.00.0200.05012.08
5.1.60.0200.02712.08
5.1.50.0130.02712.08
5.1.40.0200.05012.08
5.1.30.0200.03312.08
5.1.20.0170.03312.08
5.1.10.0230.05012.08
5.1.00.0200.03012.08
5.0.50.0130.04712.08
5.0.40.0070.04012.08
5.0.30.0130.03712.08
5.0.20.0100.03712.08
5.0.10.0100.04312.08
5.0.00.0130.06012.08
4.4.90.0030.03712.08
4.4.80.0130.02312.08
4.4.70.0100.02012.08
4.4.60.0100.03012.08
4.4.50.0100.03712.08
4.4.40.0100.03012.08
4.4.30.0130.02712.08
4.4.20.0130.03012.08
4.4.10.0130.02712.08
4.4.00.0070.05312.08
4.3.110.0130.02012.08
4.3.100.0130.02312.08
4.3.90.0070.03712.08
4.3.80.0130.04712.08
4.3.70.0200.01712.08
4.3.60.0100.02712.08
4.3.50.0100.02012.08
4.3.40.0130.04712.08
4.3.30.0030.04012.08
4.3.20.0030.03712.08
4.3.10.0030.01712.08
4.3.00.0070.03312.08

preferences:
46.51 ms | 401 KiB | 5 Q